Treskri - an underground world

[Zireael]

I need help especially when it comes to the following:
- the initial population, so that the noble houses do not die out (note, there is no incest taboo)
- animals that might live in the world
- detailing history
- detailing culture
- detailing religion

 

[Zireael]

Any ideas?

 

[Zireael]

I kindly ask the mods to move this to the newly created House Rules & Homebrew library.

 

[Zireael]

Why wasn't it moved?

Also, I have an idea - what about making it a Magitech setting? the Technology part would help explain some stuff...